This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

Potentiometers are well known all around, and the sliding potentiometer is just one of its versions. You've probably seen it in some music equipment, and now you have the chance to add it to your ...

Wrote a program that increases and decreases the PWM (pulse width modulation), essentially fading the LED off and on. Wrote a program that uses a potentiometer to either turn a red/green led on ...